demo/data/redbook/debug_vert.glsl

+/**
+ * OpenGL RedBook Shader.
+ * Example 7.8
+ */
+#version 330 core
+
+
+layout (location = 0) in vec3 VertexPosition;
+layout (location = 1) in vec3 VertexNormal;
+layout (location = 2) in vec3 VertexColour;
+layout (location = 3) in vec2 VertexTex;
+
+uniform mat4 MVPMatrix;
+uniform mat4 MVMatrix;
+uniform mat3 NormalMatrix;
+
+out Vertex {
+    vec3 Position;
+    vec3 Normal;
+    vec3 Colour;
+    vec2 TexPos;
+};
+
+void main() {
+    Colour = VertexColour;
+    Normal = mat3(transpose(inverse(MVMatrix))) * VertexNormal;
+    TexPos = VertexTex;
+    Position = vec3(MVMatrix * vec4(VertexPosition, 1));
+
+    gl_Position = MVPMatrix * vec4(VertexPosition, 1);
+}
\ No newline at end of file

demo/data/redbook/lighting_frag.glsl

@@ -86,8 +86,6 @@ void main() {
         }
 
         float diffuse = max(0.0, dot(Normal, lightDirection));
-
-
         if (diffuse == 0.0)
             specular = 0.0;
         else

demo/data/redbook/lighting_vert.glsl

@@ -8,9 +8,9 @@ uniform mat4 MVPMatrix;
 uniform mat4 MVMatrix;
 uniform mat3 NormalMatrix;
 
-in vec4 VertexPosition;
-in vec3 VertexNormal;
-in vec4 VertexColour;
+layout (location = 0) in vec3 VertexPosition;
+layout (location = 1) in vec3 VertexNormal;
+layout (location = 2) in vec3 VertexColour;
 
 out vec4 Position;
 out vec3 Normal;
@@ -20,7 +20,8 @@ out int matIndex;
 void main() {
     Colour = vec4(1.0, 1.0, 1.0, 1.0f);
     Normal = NormalMatrix * VertexNormal;
-    Position = MVMatrix * VertexPosition;
-    gl_Position = MVPMatrix * VertexPosition;
+    Position = MVMatrix * vec4(VertexPosition, 1.0);
     matIndex = 0;
+
+    gl_Position = MVPMatrix * vec4(VertexPosition, 1.0);
 }
\ No newline at end of file

demo/data/rollball.lua

+print("File has been loaded!")
+
+-- when the scene loads, switch to topdown to show state integration
+--switch_scene(state, "topdown");
\ No newline at end of file

demo/data/rollball.yml

 ---
 prefabs:
-  - name: "wallX"
+  - name: "rb_environment"
     components:
-      Transform:
-      StaticMesh:
-        pipeline: redbook/lighting
-        shape:
-          type: box
-          scale: [1.0, 5.0, 41]
       gfx::material:
         ambient: [0.0215, 0.1754, 0.0215]
         diffuse: [1, 1, 1]
         specular: [0.0633, 0.727811, 0.633]
         shininess: 16
-#      phys::Body:
-#        type: static
-#        shape:
-#          type: box
-#          extents: [0.5, 2.5, 20.5]
+  - name: "rb_wallX"
+    parent: "rb_environment"
+    components:
+      Transform:
+      StaticMesh:
+        pipeline: redbook/debug
+        shape_id: "mesh_rb_wall_x"
+        shape:
+          type: box
+          scale: [1.0, 5.0, 41]
+      phys::Body:
+        type: static
+        shape:
+          type: box
+          extents: [0.5, 2.5, 20.5]
   # Wall Z shorter to avoid z-fighting
-  - name: "wallZ"
+  - name: "rb_wallZ"
+    parent: "rb_environment"
     components:
       Transform:
       StaticMesh:
-        pipeline: redbook/lighting
+        pipeline: redbook/debug
+        shape_id: "mesh_rb_wall_z"
         shape:
           type: box
           scale: [39, 5, 1]
-      gfx::material:
-        ambient: [0.0215, 0.1754, 0.0215]
-        diffuse: [1, 1, 1]
-        specular: [0.0633, 0.727811, 0.633]
-        shininess: 16
-#      phys::Body:
-#        type: static
-#        shape:
-#          type: box
-#          extents: [ 19.5, 2.5, 0.5 ]
-  - name: "floor"
+      phys::Body:
+        type: static
+        shape:
+          type: box
+          extents: [ 19.5, 2.5, 0.5 ]
+  - name: "rb_floor"
+    parent: "rb_environment"
     components:
       Transform:
       StaticMesh:
-        pipeline: redbook/lighting
+        pipeline: redbook/debug
+        shape_id: "mesh_rb_floor"
         shape:
           type: box # we don't (currently) support planes...
           scale: [39, 0.5, 39]
-      gfx::material:
-        ambient: [0.0215, 0.1754, 0.0215]
-        diffuse: [1, 1, 1]
-        specular: [0.0633, 0.727811, 0.633]
-        shininess: 16
-#      phys::Body:
-#        type: static
-#        shape:
-#          type: box # we don't (currently) support planes...
-#          extents: [19.5, 0.25, 19.5]
-  - name: player
+      phys::Body:
+        type: static
+        shape:
+          type: box # we don't (currently) support planes...
+          extents: [19.5, 0.25, 19.5]
+  - name: rb_player
     components:
       Transform:
       StaticMesh:
-        pipeline: redbook/lighting
+        pipeline: redbook/debug
+        shape_id: "mesh_rb_player"
         shape:
           type: sphere
       gfx::material:
@@ -67,15 +66,18 @@ prefabs:
         diffuse: [0.4, 0.4, 0.4]
         specular: [0.774597,0.774597,0.774597]
         shininess: 16
-#      phys::Body:
-#        shape:
-#          type: sphere
-#          radius: 1
-  - name: collectable
+      phys::Body:
+        shape:
+          type: sphere
+          radius: 1
+  - name: rb_collectable
+    tags:
+      - "collectable"
     components:
       Transform:
       StaticMesh:
-        pipeline: redbook/lighting
+        pipeline: redbook/debug
+        shape_id: "mesh_rb_collect"
         shape:
           type: box
       gfx::material:
@@ -83,9 +85,50 @@ prefabs:
         diffuse: [1, 1, 1]
         specular: [0.0633, 0.727811, 0.633]
         shininess: 16
-#      phys::Body:
-#        type: kinematic
-#        shape:
-#          type: box
-#      phys::Callbacks:
-#      phys::Cache:
\ No newline at end of file
+      phys::Body:
+        type: kinematic
+        shape:
+          type: box
+  - name: rb_light
+    components:
+      Transform:
+      gfx::phong::directional:
+        direction: [10, 5, 0]
+scene:
+  - prefab: rb_wallX
+    components:
+      Transform:
+        origin: [20, 0, 0]
+  - prefab: rb_wallX
+    components:
+      Transform:
+        origin: [-20, 0, 0]
+  - prefab: rb_wallZ
+    components:
+      Transform:
+        origin: [0, 0, -20]
+  - prefab: rb_wallZ
+    components:
+      Transform:
+        origin: [0, 0, 20]
+  - prefab: rb_floor
+    components:
+      Transform:
+        origin: [0, -2.5, 0]
+  - prefab: rb_collectable
+    components:
+      Transform:
+        origin: [-5, -0.5, 12]
+  - prefab: rb_collectable
+    components:
+      Transform:
+        origin: [15, -0.5, 0.5]
+  - prefab: rb_collectable
+    components:
+      Transform:
+        origin: [6, -0.5, -15]
+  - prefab: rb_player
+    name: "player"
+  - prefab: rb_light
+scripts:
+  - "rollball.lua"
\ No newline at end of file

demo/data/tileset_base.yml

+---
+floors:
+  ground:
+    visible: true
+walls:
+  none:
+    visible: false
+  solid:
+    visible: true
\ No newline at end of file

demo/data/topdown.yml

@@ -4,7 +4,8 @@ prefabs:
     components:
       Transform:
       StaticMesh:
-        pipeline: phong
+        pipeline: redbook/debug
+        shape_id: td_wall_x
         shape:
           type: box
           scale: [1.0, 5.0, 41]
@@ -23,7 +24,8 @@ prefabs:
     components:
       Transform:
       StaticMesh:
-        pipeline: phong
+        pipeline: redbook/debug
+        shape_id: td_wall_y
         shape:
           type: box
           scale: [39, 5, 1]
@@ -41,7 +43,8 @@ prefabs:
     components:
       Transform:
       StaticMesh:
-        pipeline: phong
+        pipeline: redbook/debug
+        shape_id: td_floor
         shape:
           type: box # we don't (currently) support planes...
           scale: [39, 0.5, 39]
@@ -59,7 +62,8 @@ prefabs:
     components:
       Transform:
       StaticMesh:
-        pipeline: phong
+        pipeline: redbook/lighting
+        shape_id: td_player
         shape:
           type: sphere
       gfx::material:
@@ -75,7 +79,8 @@ prefabs:
     components:
       Transform:
       StaticMesh:
-        pipeline: phong
+        pipeline: redbook/lighting
+        shape_id: td_collect
         shape:
           type: box
       gfx::material:

demo/demo/GameScene.cpp

@@ -24,10 +24,15 @@
 
 #include "GameScene.h"
 #include "fggl/entity/loader/loader.hpp"
+#include "fggl/mesh/components.hpp"
 
 camera_type cam_mode = cam_free;
 
 static void placeObject(fggl::entity::EntityManager& world, fggl::entity::EntityID floor, fggl::entity::EntityFactory* factory, fggl::util::GUID prototype, glm::vec3 targetPos) {
+	#ifndef NDEBUG
+		fggl::debug::trace("Creating object from prototype: {}", fggl::util::guid_to_string(prototype));
+	#endif
+
 	auto obj = factory->create(prototype, world);
 	auto& result = world.get<fggl::math::Transform>(obj);
 
@@ -104,13 +109,13 @@ static fggl::entity::EntityID setupTerrain(fggl::entity::EntityManager& world) {
 				terrainData.setValue(x, z, (float)noise);
 			}
 		}
+		world.add<fggl::data::HeightMap>(terrain, terrainData);
 
-	//	world.set<fggl::data::HeightMap>(terrain, &terrainData);
 	}
 	return terrain;
 }
 
-static fggl::entity::EntityID setupEnvironment(fggl::entity::EntityManager& world) {
+static fggl::entity::EntityID setup_environment(fggl::entity::EntityManager& world) {
 	setupCamera(world);
 	return setupTerrain(world);
 }
@@ -120,15 +125,12 @@ static auto BUNKER_PROTOTYPE = "bunker"_fid;
 static void setupBunkerPrototype(fggl::entity::EntityFactory* factory) {
 	{
 		auto bunkerSpec = fggl::entity::EntitySpec{};
-		bunkerSpec.components[fggl::util::make_guid("transform")] = {};
-
-		fggl::entity::ComponentSpec procMesh{};
-		procMesh.set<std::string>("shader", "phong");
+		bunkerSpec.addComp(fggl::math::Transform::guid, {});
 
 		// mesh
 		int nSections = 2;
+		fggl::mesh::MultiMesh3D mesh;
 
-		fggl::data::Mesh mesh;
 		for (int j=-(nSections/2); j<=nSections/2; j++) {
 			const auto shapeOffset = glm::vec3( 0.0f, 0.5f, (float)j * 1.0f );
 
@@ -140,15 +142,41 @@ static void setupBunkerPrototype(fggl::entity::EntityFactory* factory) {
 				glm::vec3( 1.0f, 0.0f, 0.0f) + shapeOffset,
 				glm::vec3( 0.0f, fggl::math::HALF_PI, 0.0f) );
 
-			fggl::data::make_cube( mesh, cubeMat );
-			fggl::data::make_slope( mesh, leftSlope );
-			fggl::data::make_slope( mesh, rightSlope );
+			fggl::data::make_cube( mesh.generate(), cubeMat);
+			fggl::data::make_slope( mesh.generate(), leftSlope );
+			fggl::data::make_slope( mesh.generate(), rightSlope );
 		}
-		mesh.removeDups();
+		//mesh.removeDups();
 
-		procMesh.set<std::vector<fggl::data::Vertex>>("vertexData", mesh.vertexList());
-		procMesh.set<std::vector<unsigned int>>("indexData", mesh.indexList());
-		bunkerSpec.components[fggl::util::make_guid("procedural_mesh")] = procMesh;
+		// generate mesh component data
+		// FIXME: find a better way to do this, avoid re-uploading the whole mesh.
+		fggl::entity::ComponentSpec procMesh{};
+		procMesh.set<std::string>("pipeline", "redbook/debug");
+
+		YAML::Node modelNode;
+		for (auto& submesh : mesh.meshes) {
+			YAML::Node vertexData;
+			for (auto& vertex : submesh.data) {
+				YAML::Node vertexNode;
+				vertexNode["position"] = vertex.position;
+				vertexNode["normal"] = vertex.normal;
+				vertexNode["colour"] = vertex.colour;
+				vertexNode["texPos"] = vertex.texPos;
+				vertexData.push_back(vertexNode);
+			}
+
+			YAML::Node indexData;
+			for (auto& index : submesh.indices) {
+				indexData.push_back(index);
+			}
+
+			YAML::Node meshNode;
+			meshNode["vertex"] = vertexData;
+			meshNode["index"] = indexData;
+			modelNode.push_back( meshNode );
+		}
+		procMesh.set("model", modelNode);
+		bunkerSpec.addComp(fggl::mesh::StaticMultiMesh3D::guid, procMesh);
 
 		factory->define(BUNKER_PROTOTYPE, bunkerSpec);
 	}
@@ -159,7 +187,7 @@ void GameScene::setup() {
 
 	auto* entityFactory = m_owner.service<fggl::entity::EntityFactory>();
 
-	auto terrain = setupEnvironment(world());
+	auto terrain = setup_environment(world());
 	setupBunkerPrototype(entityFactory);
 
 	// create building prototype
@@ -172,8 +200,8 @@ void GameScene::setup() {
 	}
 }
 
-void GameScene::update() {
-	Game::update();
+void GameScene::update(float dt) {
+	Game::update(dt);
 	process_camera(world(), input());
 }
 

demo/demo/grid.cpp

+/*
+ * This file is part of FGGL.
+ *
+ * FGGL is free software: you can redistribute it and/or modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any
+ * later version.
+ *
+ * FGGL is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty
+ * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License along with FGGL.
+ * If not, see <https://www.gnu.org/licenses/>.
+ */
+
+//
+// Created by webpigeon on 27/08/22.
+//
+
+#include "grid.hpp"
+
+#include "fggl/assets/loader.hpp"
+#include "fggl/entity/gridworld/zone.hpp"
+
+#include "fggl/gui/model/parser.hpp"
+#include "fggl/gui/renderer/renderer.hpp"
+
+using namespace fggl::gfx::colours;
+
+namespace demo {
+
+	using namespace fggl::entity::grid;
+
+	static void build_tileset(TileSet& tiles) {
+		tiles.m_floors.push_back(FloorTile{FloorTile::IMPOSSIBLE, BLACK});
+		tiles.m_floors.push_back(FloorTile{1, GREEN});
+		tiles.m_floors.push_back(FloorTile{1, YELLOW_GREEN});
+
+		fggl::entity::grid::WallTile noWall{};
+		tiles.m_walls.push_back(noWall);
+
+		fggl::entity::grid::WallTile solidWall{
+			.render = true,
+			.colour = DARK_SLATE_GRAY
+		};
+		tiles.m_walls.push_back(solidWall);
+	}
+
+	static void build_room(DemoGrid* area, fggl::math::vec2i center, fggl::math::vec2i size) {
+
+		for (int yOffset = -size.y; yOffset <= size.y; ++yOffset) {
+			auto yPos = yOffset + center.y;
+			area->setWallAt(center.x - size.x, yPos, false, 1);
+			area->setWallAt(center.x + size.x + 1, yPos, false, 1);
+		}
+
+		for (int xOffset = -size.x; xOffset <= size.x; ++xOffset) {
+			auto xPos = center.x + xOffset;
+
+			area->setWallAt(xPos, center.y - size.y, true, 1);
+			area->setWallAt(xPos, center.y + size.y + 1, true, 1);
+
+			for (int yOffset = -size.y; yOffset <= size.y; ++yOffset) {
+				auto yPos = yOffset + center.y;
+				area->setFloorAt(xPos, yPos, 1);
+			}
+		}
+	}
+
+	void build_doorway(DemoGrid* area, fggl::math::vec2i position, bool north, int size = 1) {
+		for ( auto offset = 0; offset < size; offset++) {
+			if ( north ) {
+				area->setWallAt(position.x + offset, position.y, north, 0);
+			} else {
+				area->setWallAt(position.x, position.y + offset, north, 0);
+			}
+		}
+	}
+
+	static fggl::entity::EntityID build_test_env(DemoGrid* area, LevelRules& rules) {
+		area->clear();
+		build_room(area, {5, 5}, {4,4});
+		build_room(area, {11, 5}, {1,1});
+		build_room(area, {17, 5}, {4,4});
+		build_doorway(area, {10, 5}, false, 1);
+		build_doorway(area, {13, 5}, false, 1);
+
+		// set goal
+		area->setFloorAt(17, 5, 2);
+
+		// level rules
+		rules.startingPower = 20;
+		rules.startingPos = {5, 5};
+		rules.startingDirection = 1;
+
+		// player
+		fggl::entity::EntityID player = fggl::entity::INVALID;
+		auto& manager = area->entities();
+		{
+			player = manager.create();
+			manager.add<CellPos>(player);
+			manager.add<RobotState>(player);
+		}
+
+		return player;
+	}
+
+	struct Action {
+		const char* name;
+		std::function<void(void)> callback;
+	};
+
+	GridScene::GridScene(fggl::App &app) : GameBase(app), m_tiles(), m_animator(15.0F), m_grid(nullptr), m_canvas() {
+		m_animator.add([this](){this->tickPlayer();});
+
+		auto btnGrid = std::make_unique<fggl::gui::GridBox>(0, 2);
+
+		std::array<Action, 4> actions{{
+										  {"<", [this]() { this->rotate(true); }},
+										  {">", [this]() { this->rotate(false); }},
+										  {"^", [this]() { this->forward(); }},
+										  {"Z", [this]() {  } }
+									  }};
+
+		fggl::math::vec2i pos{0, 0};
+		for (auto& action : actions) {
+			fggl::math::vec2i size{32, 32};
+			auto btn = std::make_unique<fggl::gui::Button>(pos, size);
+			btn->label(action.name);
+			btn->addCallback([=, this](){
+				this->m_program.m_instructions.push_back({action.name, action.callback});
+			});
+			btnGrid->add(std::move(btn));
+		}
+
+		// control buttons
+		{
+			fggl::math::vec2i size{64, 32};
+			auto btn = std::make_unique<fggl::gui::Button>(pos, size);
+			btn->label("go");
+			btn->addCallback([this](){
+				if ( !this->m_program.playing ) {
+					resetPuzzle();
+					this->m_program.m_currInstruction = 0;
+					this->m_program.playing = true;
+				}
+			});
+			btnGrid->add(std::move(btn));
+		}
+
+		{
+			fggl::math::vec2i size{64, 64};
+			auto btn = std::make_unique<fggl::gui::Button>(pos, size);
+			btn->label("Del");
+			btn->addCallback([this](){
+				if ( !this->m_program.playing ) {
+					if ( !m_program.m_instructions.empty() ) {
+						m_program.m_instructions.pop_back();
+					}
+				}
+			});
+			btnGrid->add(std::move(btn));
+		}
+
+		btnGrid->layout();
+		m_canvas.add(std::move(btnGrid));
+
+		// create a timeline panel
+		std::unique_ptr<robot::Timeline> timeline = std::make_unique<robot::Timeline>(m_program);
+		timeline->size({50,700}, {250, 250});
+		m_canvas.add(std::move(timeline));
+
+		m_canvas.layout();
+	}
+
+	void GridScene::activate() {
+		GameBase::activate();
+		fggl::debug::log(fggl::debug::Level::info, "GridScene::activate()");
+
+		m_animator.reset();
+
+		// fake loading the tileset
+		if ( m_tiles.m_floors.empty() ) {
+			build_tileset(m_tiles);
+		}
+
+		// create the grid world
+		m_grid = std::make_unique<DemoGrid>(m_tiles);
+		m_player = build_test_env(m_grid.get(), m_levelRules);
+
+		resetPuzzle();
+	}
+
+	void GridScene::deactivate() {
+		m_grid = nullptr;
+	}
+
+	constexpr float DRAW_SIZE = 64.0F;
+	constexpr float DRAW_HALF = DRAW_SIZE / 2.0F;
+	constexpr float WALL_HALF = 2.5F;
+
+	static void render_grid(fggl::gfx::Paint& paint, fggl::entity::grid::Area2D<255, 255>& grid, fggl::App& app) {
+		const fggl::math::vec2 wallOffsetNorth {0, -DRAW_HALF};
+		const fggl::math::vec2 wallOffsetWest {-DRAW_HALF, 0};
+
+		for (int i=0; i <= 31; ++i) {
+			for (int j=0; j <= 31; ++j) {
+				const fggl::math::vec2 drawPos{i * DRAW_SIZE, j*DRAW_SIZE};
+
+				// draw floor
+				{
+					auto &floor = grid.floorAt(i, j);
+					fggl::gfx::Path2D tileGfx = fggl::gfx::make_rect(drawPos, {DRAW_HALF, DRAW_HALF}, floor.colour);
+					paint.fill(tileGfx);
+				}
+
+				auto& wallNorth = grid.wallAt(i, j, true);
+				if ( wallNorth.render ) {
+					fggl::gfx::Path2D tileGfx = fggl::gfx::make_rect(drawPos + wallOffsetNorth, {DRAW_HALF, WALL_HALF}, wallNorth.colour);
+					paint.fill(tileGfx);
+				}
+
+				auto& wallWest = grid.wallAt(i, j, false);
+				if ( wallWest.render ) {
+					fggl::gfx::Path2D tileGfx = fggl::gfx::make_rect(drawPos + wallOffsetWest, {WALL_HALF, DRAW_HALF}, wallWest.colour);
+					paint.fill(tileGfx);
+				}
+			}
+		}
+
+		// UI test
+		auto widgetFactory = app.service<fggl::gui::model::WidgetFactory>();
+
+		auto widget = widgetFactory->buildEmpty();
+		widget->set("position", fggl::math::vec2{200.0F, 100.F});
+		widget->set("size", fggl::math::vec2{500.0F, 300.F});
+		widget->set("colour", fggl::gfx::colours::BLANCHED_ALMOND);
+		fggl::gui::model::attr_box_set(*widget, "padding", 5.0F);
+
+		auto handle = widgetFactory->buildEmpty();
+		handle->set("border::bottom",5.0F);
+		handle->set("position", fggl::math::vec2{0.0F, 0.0F});
+		//handle->set("size", fggl::math::vec2{INFINITY, 50.0F});
+		handle->set("text", "hello, world!");
+		handle->set("colour", fggl::gfx::colours::ORANGE);
+		fggl::gui::model::attr_box_set(*handle, "padding", 5.0F);
+		widget->addChild(*handle);
+		delete handle;
+
+		auto content = widgetFactory->buildEmpty();
+		content->set("position", fggl::math::vec2{0.0F, 50.0F});
+		//content->set("size", fggl::gui::model::UNDEFINED_SIZE);
+		content->set("colour", fggl::gfx::colours::BURLYWOOD);
+		widget->addChild(*content);
+		delete content;
+
+		fggl::gui::renderer::layout(*widget);
+		fggl::gui::renderer::visit(*widget, paint);
+	}
+
+
+	static void render_objects(fggl::gfx::Paint& paint, DemoGrid& grid) {
+		auto& manager = grid.entities();
+
+		auto entities = manager.find<CellPos>();
+		for (const auto& entity : entities ) {
+			//auto& sprite = manager.get<Sprite>(entity);
+			auto& cellPos = manager.get<CellPos>(entity);
+
+			// convert grid pos to world pos
+			fggl::math::vec2f drawPos = cellPos.pos;
+			drawPos *= DRAW_SIZE;
+			drawPos += cellPos.drawOffset;
+
+			fggl::gfx::ShapeOpts opts;
+			opts.angleOffset = (float)cellPos.direction * fggl::math::HALF_PI + cellPos.rotationOffset;
+
+			auto shape = fggl::gfx::make_shape(drawPos, DRAW_HALF, 3, NAVAJO_WHITE, opts);
+			paint.fill(shape);
+		}
+	}
+
+	static void update_canvas(fggl::input::Input& inputs, fggl::gui::Container& canvas) {
+		fggl::math::vec2f cursorPos {
+			inputs.mouse.axis(fggl::input::MouseAxis::X),
+			inputs.mouse.axis(fggl::input::MouseAxis::Y)
+		};
+
+		// in canvas space
+		fggl::math::vec2 projected {
+			fggl::math::rescale_ndc(cursorPos.x, 0, 1920.f),
+			fggl::math::rescale_ndc(cursorPos.y, 0, 1080.0f)
+		};
+		canvas.onMouseOver(projected);
+
+		// detect clicks
+		if (inputs.mouse.pressed(fggl::input::MouseButton::LEFT)) {
+			auto* widget = canvas.getChildAt(projected);
+			if (widget != nullptr) {
+				fggl::debug::info("Button clicked");
+				widget->activate();
+			}
+		}
+	}
+
+	void GridScene::update(float deltaTime) {
+		GameBase::update(deltaTime);
+		m_animator.update(deltaTime);
+
+		m_canvas.update(deltaTime);
+		update_canvas(input(), m_canvas);
+	}
+
+	void GridScene::tickPlayer() {
+		if ( !m_program.playing ){
+			return;
+		}
+
+		if ( m_program.m_currInstruction < m_program.m_instructions.size() ) {
+			auto& robotState = m_grid->entities().get<RobotState>(m_player);
+			if (robotState.power == 0) {
+				// a looser is you
+				resetPuzzle();
+				return;
+			}
+
+			robotState.power--;
+			m_program.step();
+		} else {
+			m_program.stop();
+			checkVictory();
+		}
+	}
+
+	void GridScene::resetPuzzle() {
+		// reset instruction panel
+		m_program.stop();
+
+		// reset robot state
+		auto& robotPos = m_grid->entities().get<CellPos>(m_player);
+		auto& robotState = m_grid->entities().get<RobotState>(m_player);
+
+		robotPos.pos = m_levelRules.startingPos;
+		robotPos.direction = m_levelRules.startingDirection;
+		robotState.power = m_levelRules.startingPower;
+	}
+
+	void GridScene::checkVictory() {
+		if ( !m_program.playing ) {
+			auto& botPos = m_grid->entities().get<CellPos>(m_player).pos;
+			auto gridCell = m_grid->floorAt(botPos.x, botPos.y);
+			if ( gridCell.colour == YELLOW_GREEN ) {
+				// a winner is you!
+				returnToMenu();
+			}
+		}
+	}
+
+	void GridScene::render(fggl::gfx::Graphics &gfx) {
+		fggl::gfx::Paint paint;
+		render_grid(paint, *m_grid, owner());
+		render_objects(paint, *m_grid);
+
+		m_canvas.render(paint);
+		gfx.draw2D(paint);
+	}
+
+} // namespace demo

demo/demo/hexboard/board.cpp

+/*
+ * This file is part of FGGL.
+ *
+ * FGGL is free software: you can redistribute it and/or modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any
+ * later version.
+ *
+ * FGGL is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty
+ * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License along with FGGL.
+ * If not, see <https://www.gnu.org/licenses/>.
+ */
+
+//
+// Created by webpigeon on 10/12/22.
+//
+
+#include "hexboard/scene.hpp"
+
+namespace demo::hexboard {
+	constexpr float SCROLL_SPEED = 0.01F;
+	constexpr float HEX_SIZE = 64.0F;
+	constexpr std::array<fggl::grid::IntHex, 4> ISLAND_CENTERS {{
+																	{2, 3},
+																	{6, 7},
+																	{9, 10},
+																	{6, 3}
+	}};
+
+
+	Scene::Scene(fggl::App &app) : GameBase(app), m_board(nullptr), m_screen(1920.F, 1080.F) {
+	}
+
+	void Scene::activate() {
+		m_board = std::make_unique<fggl::grid::HexGrid>();
+		m_layout = std::make_unique<fggl::grid::Layout>( fggl::grid::Orientation::make_pointy(), HEX_SIZE );
+		//m_layout->m_origin = { 1920.0F * -0.5F, 1080.0F * -0.5F};
+
+		m_selections = std::make_unique<SelectionModel>();
+
+		const fggl::grid::TerrainType grass{
+			.data = std::make_shared<fggl::grid::MaterialData>()
+
+		};
+		grass.data->name = "grass";
+		grass.data->colour = {0.0F, 1.0F, 0.0};
+
+		for (auto islandPoint : ISLAND_CENTERS){
+			auto island = islandPoint.hexesInRange(2);
+			for (auto &hex : island) {
+				m_board->setTerrain(hex, grass);
+			}
+		}
+
+		m_camera = std::make_unique<Camera2D>();
+	}
+
+	void Scene::deactivate() {
+		m_board = nullptr;
+		m_selections = nullptr;
+		m_layout = nullptr;
+	}
+
+	void Scene::update(float delta) {
+		GameBase::update(delta);
+
+		// if the board is not set, abort
+		if ( m_board == nullptr ){
+			return;
+		}
+
+		// check if a button was pressed
+		auto& input = this->input();
+		{
+			const auto mouseNdc = fggl::input::mouse_axis(input.mouse);
+			const auto screenPos = ndc_to_screen(mouseNdc, m_screen);
+
+			// calculate what the user clicked on
+			auto worldPx = m_camera->unproject(screenPos);
+			m_selections->hover = fggl::grid::round2( m_layout->toGrid(worldPx) );
+
+			if (input.mouse.pressed(fggl::input::MouseButton::LEFT)) {
+				m_selections->selected = m_selections->hover;
+				m_camera->moveBy(mouseNdc * (m_screen * 0.5F) );
+			}
+
+			if ( input.mouse.down(fggl::input::MouseButton::RIGHT) ) {
+				if (input.mouse.pressed( fggl::input::MouseButton::RIGHT )) {
+					m_dragging = screenPos;
+				}
+
+				auto offset = screenPos - m_dragging.value();
+				m_camera->teleportBy(offset * SCROLL_SPEED);
+			} else if ( input.mouse.released(fggl::input::MouseButton::RIGHT) ) {
+				m_dragging = {};
+			}
+
+		}
+
+		m_camera->update(delta);
+
+		// flip y, because reasons
+		//auto offset = m_camera->getFocusLocation();
+		//m_layout->m_origin = -offset;
+	}
+
+	void Scene::drawGrid(fggl::gfx::Paint& paint) {
+		auto tiles = m_board->getAllTiles();
+		for ( const auto& tile : tiles ) {
+			auto terrain = m_board->getTerrain(tile);
+			if ( terrain.has_value() ) {
+				const auto& terrainData = terrain.value();
+				m_layout->paintHex(paint, tile, terrainData.colour, m_camera->getFocusLocation());
+			}
+		}
+	}
+
+	void Scene::drawSelections(fggl::gfx::Paint& paint) {
+		if ( m_selections == nullptr || m_dragging.has_value() ) {
+			return;
+		}
+
+		if ( m_selections->selected.has_value() ) {
+			m_layout->paintHex( paint, m_selections->selected.value(), fggl::gfx::colours::YELLOW, m_camera->getFocusLocation());
+		}
+
+		if ( m_selections->hover.has_value() ) {
+			m_layout->paintHex( paint, m_selections->hover.value(), fggl::gfx::colours::BLANCHED_ALMOND, m_camera->getFocusLocation());
+		}
+	}
+
+	void Scene::render(fggl::gfx::Graphics &gfx) {
+		// if the board is not set, abort
+		if ( m_board == nullptr ){
+			return;
+		}
+
+		// draw the grid
+		// FIXME don't hard-code the screen size
+		fggl::gfx::Paint paint;
+		drawGrid(paint);
+		drawSelections(paint);
+		gfx.draw2D(paint);
+	}
+
+
+
+} // namespace demo::hexboard
\ No newline at end of file

demo/demo/hexboard/camera.cpp

+/*
+ * This file is part of FGGL.
+ *
+ * FGGL is free software: you can redistribute it and/or modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any
+ * later version.
+ *
+ * FGGL is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty
+ * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License along with FGGL.
+ * If not, see <https://www.gnu.org/licenses/>.
+ */
+
+//
+// Created by webpigeon on 02/01/23.
+//
+
+#include "hexboard/camera.hpp"
+
+#include "fggl/math/fmath.hpp"
+
+#include <cmath>
+
+namespace demo::hexboard {
+
+	void Camera2D::update(float delta) {
+		m_location = fggl::math::smooth_add( m_location, m_target, m_scale );
+		if ( m_trauma > 0 ) {
+			m_trauma = std::max( m_trauma - TRAUMA_DECAY, 0.0F );
+		}
+	}
+
+}
\ No newline at end of file

demo/demo/main.cpp

@@ -23,52 +23,55 @@
 
 #if __has_include("fggl/phys/bullet/bullet.hpp")
 	#include "fggl/phys/bullet/bullet.hpp"
+#else
+	#include "fggl/phys/null.hpp"
 #endif
 
 #include "fggl/fggl.hpp"
 #include "fggl/entity/module.hpp"
 
 #include "fggl/audio/openal/audio.hpp"
-
-#include "fggl/gfx/atlas.hpp"
 #include "fggl/display/glfw/window.hpp"
-#include "fggl/gfx/ogl/compat.hpp"
 
-#include "fggl/platform/paths.hpp"
 
 #include "fggl/scenes/menu.hpp"
 #include "fggl/modules/manager.hpp"
+
+#include "fggl/data/assimp/module.hpp"
 #include "fggl/assets/module.hpp"
+#include "fggl/assets/packed/module.hpp"
+
+#if __has_include("fggl/script/lua/module.hpp")
+	#include "fggl/script/lua/module.hpp"
+#endif
 
 #include "GameScene.h"
 #include "rollball.hpp"
 #include "topdown.hpp"
+#include "grid.hpp"
+#include "models/viewer.hpp"
+#include "hexboard/scene.hpp"
 
 static void setup_menu(fggl::App& app) {
 	auto *menu = app.addState<fggl::scenes::BasicMenu>("menu");
 
 	// add some menu items for the game states
-	menu->add("terrain", [&app]() {
-		auto* audio = app.service<fggl::audio::AudioService>();
-		audio->play("click.ogg", false);
-		app.change_state("game");
-	});
+	const std::array labels = {"terrain", "rollball", "Top Down", "Grid World", "Viewer", "gridworld"};
+	const std::array scenes = {"game", "rollball", "topdown", "gridworld", "viewer", "hexboard"};
 
-	menu->add("rollball", [&app]() {
-		auto* audio = app.service<fggl::audio::AudioService>();
-		audio->play("click.ogg", false);
-		app.change_state("rollball");
-	});
+	for (std::size_t i = 0; i < labels.size(); ++i) {
+		std::string sceneName = scenes.at(i);
 
-	menu->add("Top Down", [&app]() {
-		auto* audio = app.service<fggl::audio::AudioService>();
-		audio->play("click.ogg", false);
-		app.change_state("topdown");
-	});
+		menu->add(labels.at(i), [&app, sceneName]() {
+			auto* audio = app.service<fggl::audio::AudioService>();
+			audio->play("ui/click.ogg", false);
+			app.change_state(sceneName);
+		});
+	}
 
 	menu->add("quit", [&app]() {
-		auto* audio = app.service<fggl::audio::AudioService>();
-		audio->play("click.ogg", false);
+		//auto* audio = app.service<fggl::audio::AudioService>();
+		//audio->play("click.ogg", false);
 		app.running(false);
 	});
 }
@@ -84,12 +87,36 @@ int main(int argc, const char* argv[]) {
 	moduleManager.use<fggl::gfx::OpenGL4>();
 	moduleManager.use<fggl::display::GLFW>();
 	moduleManager.use<fggl::assets::AssetFolders>();
+	moduleManager.use<fggl::assets::PackedAssets>();
 	moduleManager.use<fggl::entity::ECS>();
+
+	#ifdef FGGL_HAS_LUA
+		moduleManager.use<fggl::script::Lua>();
+	#endif
+
+	// debug/testing use
+	moduleManager.use<fggl::data::AssimpLoader>();
+
+	#ifdef FGGL_MODULE_BULLET
+		moduleManager.use<fggl::phys::Bullet3>();
+	#else
+		moduleManager.use<fggl::phys::NullPhysics>();
+	#endif
 	moduleManager.resolve();
 
 	// create the application
 	fggl::App app( &moduleManager, "fggl-demo" );
 
+	// force asset loading
+	{
+		auto* assetFinder = app.service<fggl::assets::CheckinAdapted>();
+		assetFinder->discover("core");
+
+		auto* assets = app.service<fggl::assets::AssetManager>();
+		auto* loader = app.service<fggl::assets::Loader>();
+		loader->load("ui/click.ogg", fggl::audio::ASSET_CLIP_SHORT, assets);
+	}
+
 	auto* windowing = app.service<fggl::display::WindowService>();
 
 	// make a window for our application
@@ -98,18 +125,14 @@ int main(int argc, const char* argv[]) {
 	window->setFullscreen( true );
 	app.setWindow(window);
 
-	// load a bunch of modules to provide game functionality
-	//app.use<fggl::ecs3::ecsTypes>();
-	/*app.use<fggl::gfx::SceneUtils>();
-	#ifdef FGGL_MODULE_BULLET
-		app.use<FGGL_MODULE_BULLET>();
-	#endif*/
-
 	// our test states
 	setup_menu(app);
     app.addState<GameScene>("game");
 	app.addState<demo::RollBall>("rollball");
 	app.addState<demo::TopDown>("topdown");
+	app.addState<demo::GridScene>("gridworld");
+	app.addState<demo::Viewer>("viewer");
+	app.addState<demo::hexboard::Scene>("hexboard");
 
 	return app.run(argc, argv);
 }

demo/demo/models/viewer.cpp

+/*
+ * This file is part of FGGL.
+ *
+ * FGGL is free software: you can redistribute it and/or modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any
+ * later version.
+ *
+ * FGGL is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty
+ * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License along with FGGL.
+ * If not, see <https://www.gnu.org/licenses/>.
+ */
+
+//
+// Created by webpigeon on 18/10/22.
+//
+
+#include "models/viewer.hpp"
+
+#include "fggl/assets/module.hpp"
+#include "fggl/data/assimp/module.hpp"
+
+#include "fggl/mesh/mesh.hpp"
+#include "fggl/mesh/components.hpp"
+
+#include "fggl/input/camera_input.hpp"
+
+#include "fggl/gfx/phong.hpp"
+#include "fggl/gfx/camera.hpp"
+#include "fggl/gfx/paint.hpp"
+
+namespace demo {
+
+	static fggl::entity::EntityID build_model(fggl::entity::EntityManager& manager, fggl::assets::AssetManager *assets, fggl::assets::AssetID assetRef){
+		auto model = manager.create();
+
+		manager.add<fggl::math::Transform>(model);
+		auto& mesh = manager.add<fggl::mesh::StaticMultiMesh3D>(model);
+
+		auto* meshData = assets->get<fggl::mesh::MultiMesh3D>( assetRef );
+		if ( meshData == nullptr ) {
+			fggl::debug::warning("loading model did not work!");
+		} else {
+			mesh.mesh = *meshData;
+			mesh.pipeline = "redbook/debug";
+		}
+
+		manager.add<fggl::gfx::PhongMaterial>(model);
+
+		return model;
+	}
+
+	static void process_camera(fggl::entity::EntityManager& ecs, const fggl::input::Input& input) {
+		auto cameras = ecs.find<fggl::gfx::Camera>();
+		auto cam = cameras[0];
+
+		auto camTransform = ecs.get<fggl::math::Transform>(cam);
+		auto camComp = ecs.get<fggl::gfx::Camera>(cam);
+
+		const glm::vec3 dir = ( camTransform.origin() - camComp.target );
+		const glm::vec3 forward = glm::normalize( dir );
+
+		// scroll wheel
+		glm::vec3 motion(0.0f);
+		float delta = input.mouse.axis( fggl::input::MouseAxis::SCROLL_Y );
+		if ( (glm::length( dir ) < 25.0f && delta < 0.0f) || (glm::length( dir ) > 2.5f && delta > 0.0f) )
+			motion -= (forward * delta);
+		camTransform.origin( camTransform.origin() + motion );
+
+		fggl::input::process_arcball(ecs, input, cam);
+	}
+
+	static void setup_camera(fggl::entity::EntityManager& world) {
+		auto prototype = world.create();
+
+		// setup camera position/transform
+		auto& transform = world.add<fggl::math::Transform>(prototype);
+		transform.origin(glm::vec3(10.0f, 3.0f, 10.0f));
+
+		// setup camera components
+		world.add<fggl::gfx::Camera>(prototype);
+
+		// interactive camera
+		auto& cameraKeys = world.add<fggl::input::FreeCamKeys>(prototype);
+		cameraKeys.forward = glfwGetKeyScancode(GLFW_KEY_W);
+		cameraKeys.backward = glfwGetKeyScancode(GLFW_KEY_S);
+		cameraKeys.left = glfwGetKeyScancode(GLFW_KEY_A);
+		cameraKeys.right = glfwGetKeyScancode(GLFW_KEY_D);
+		cameraKeys.rotate_cw = glfwGetKeyScancode(GLFW_KEY_Q);
+		cameraKeys.rotate_ccw = glfwGetKeyScancode(GLFW_KEY_E);
+	}
+
+	static void setup_lighting(fggl::entity::EntityManager& ecs) {
+		auto light = ecs.create();
+		ecs.add<fggl::math::Transform>(light);
+
+		auto& lightComp = ecs.add<fggl::gfx::DirectionalLight>(light);
+		lightComp.position = fggl::math::vec3( 10.0F, 5.0F, 0.0F );
+		lightComp.diffuse = fggl::gfx::colours::CORNSILK;
+		lightComp.ambient = fggl::gfx::colours::MIDNIGHT_BLUE;
+		lightComp.specular = fggl::gfx::colours::MIDNIGHT_BLUE;
+	}
+
+	Viewer::Viewer(fggl::App &app) : fggl::scenes::Game(app), m_model(fggl::entity::INVALID) {
+
+	}
+
+	void Viewer::activate() {
+		Game::activate();
+
+		auto* assetFinder =  m_owner.service<fggl::assets::CheckinAdapted>();
+		assetFinder->discover("viewer");
+
+		// setup the assets we can select between
+		// TODO some form of introspection to automatically find declared/discovered assets of a given type
+		m_assets.clear();
+		m_assets.push_back( fggl::assets::make_asset_id_rt("viewer", "backpack/backpack.obj") );
+		m_assets.push_back( fggl::assets::make_asset_id_rt("viewer", "lowpoly_scifi/wallDoor_double.FBX") );
+		m_assets.push_back( fggl::assets::make_asset_id_rt("viewer", "lowpoly_scifi/wallDoor_double_end.FBX") );
+		m_assets.push_back( fggl::assets::make_asset_id_rt("viewer", "newell_teaset/teapot.obj") );
+		m_assets.push_back( fggl::assets::make_asset_id_rt("viewer", "humansanimatedpack/Paladin/Paladin.fbx") );
+
+		// create camera
+		setup_camera(world());
+		setup_lighting(world());
+
+		// setup model
+		m_model = fggl::entity::INVALID;
+		cycleAsset(0);
+	}
+
+	void Viewer::deactivate() {
+		Game::deactivate();
+	}
+
+	void Viewer::update(float dt) {
+		Game::update(dt);
+		process_camera(world(), input());
+
+		if ( input().keyboard.pressed(glfwGetKeyScancode(GLFW_KEY_F2)) ) {
+			m_debug = !m_debug;
+		}
+
+		if ( input().keyboard.pressed(glfwGetKeyScancode(GLFW_KEY_F3)) ) {
+			// trigger the asset cycle
+			m_lastAsset = (m_lastAsset + 1) % m_assets.size();
+			cycleAsset(m_lastAsset);
+		}
+	}
+
+	void Viewer::cycleAsset(uint64_t /*idx*/) {
+		auto *loader = owner().service<fggl::assets::Loader>();
+		auto *manager = owner().service<fggl::assets::AssetManager>();
+
+		auto nextAsset = m_assets[ m_lastAsset ];
+		loader->loadChain(nextAsset, manager);
+
+		if ( m_model != fggl::entity::INVALID) {
+			world().destroy(m_model);
+		}
+		m_model = build_model(world(), manager, nextAsset);
+	}
+
+	void Viewer::render(fggl::gfx::Graphics &gfx) {
+		Game::render(gfx);
+
+		gfx.drawScene(world(), m_debug);
+	}
+
+}

demo/demo/robot/programmer.cpp

+/*
+ * This file is part of FGGL.
+ *
+ * FGGL is free software: you can redistribute it and/or modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any
+ * later version.
+ *
+ * FGGL is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty
+ * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License along with FGGL.
+ * If not, see <https://www.gnu.org/licenses/>.
+ */
+
+//
+// Created by webpigeon on 04/09/22.
+//
+
+#include "robot/programmer.hpp"
+
+namespace demo::robot {
+
+	Timeline::Timeline(Program& program) {
+		m_tracks.push_back(std::ref(program));
+	}
+
+	void Timeline::update(float deltaTime) {
+		auto currSize = size();
+
+		float trackHeight = m_tracks.size() * 32.0F;
+		std::size_t widestTrack = 0;
+		for ( auto& track : m_tracks ) {
+			widestTrack = std::max(widestTrack, track.get().size());
+		}
+
+		float instructionWidth = 32 * widestTrack;
+		if ( currSize.x < instructionWidth || currSize.y < trackHeight ) {
+			size( topLeft(), {instructionWidth, trackHeight} );
+		}
+	}
+
+	void Timeline::render(fggl::gfx::Paint &paint) {
+		fggl::gui::Panel::render(paint);
+
+		renderInstructions(paint);
+	}
+
+	void Timeline::renderInstructions(fggl::gfx::Paint& paint) {
+		const fggl::math::vec2f barExtents{16, 16};
+
+		for ( auto track=0U; track < m_tracks.size(); ++track) {
+			auto& trackRef = m_tracks[track].get();
+
+			for (auto i = 0U; i < trackRef.size(); ++i) {
+				auto barCenter = this->topLeft();
+
+				barCenter.x += (i * (barExtents.x * 2) ) + barExtents.x;
+				barCenter.y += (track * barExtents.y * 2) + barExtents.y;
+
+				// bar background
+				auto colour = fggl::gfx::colours::LIGHT_GRAY;
+				auto textColour = fggl::gfx::colours::DARK_SLATE_GRAY;
+				if (i % 2 == 0) {
+					colour = fggl::gfx::colours::WHITE;
+				}
+
+				if (i == trackRef.m_currInstruction && trackRef.playing) {
+					colour = fggl::gfx::colours::MIDNIGHT_BLUE;
+					textColour = fggl::gfx::colours::LIGHT_GRAY;
+				}
+				auto rect = fggl::gfx::make_rect(barCenter, barExtents, colour);
+				paint.fill(rect);
+
+				// bar instruction
+				auto& instruction = trackRef.m_instructions[i];
+				paint.text(instruction.name, barCenter, textColour);
+			}
+		}
+	}
+
+}

demo/demo/rollball.cpp

@@ -31,11 +31,11 @@
 
 #include <array>
 
-static const fggl::util::GUID playerPrefab = "player"_fid;
-static const fggl::util::GUID collectablePrefab = "collectable"_fid;
-static const fggl::util::GUID WallNPrefab = "wallX"_fid;
-static const fggl::util::GUID WallEPrefab = "wallZ"_fid;
-static const fggl::util::GUID floorPrefab = "floor"_fid;
+static const fggl::util::GUID playerPrefab = "rb_player"_fid;
+static const fggl::util::GUID collectablePrefab = "rb_collectable"_fid;
+static const fggl::util::GUID WallNPrefab = "rb_wallX"_fid;
+static const fggl::util::GUID WallEPrefab = "rb_wallZ"_fid;
+static const fggl::util::GUID floorPrefab = "rb_floor"_fid;
 
 static void setup_camera(fggl::entity::EntityManager& world) {
 	auto prototype = world.create();
@@ -48,65 +48,13 @@ static void setup_camera(fggl::entity::EntityManager& world) {
 	world.add<fggl::gfx::Camera>(prototype);
 }
 
-static fggl::entity::EntityID setup_environment(fggl::entity::EntityManager& world, fggl::entity::EntityFactory* factory, const fggl::math::vec2& size, demo::RollState& state) {
-	{
-		auto northWall = factory->create(WallNPrefab, world);
-		auto& transform = world.get<fggl::math::Transform>(northWall);
-		transform.origin({size.x/2, 0.0F, 0.0F});
-	}
-
-	{
-		auto southWall = factory->create(WallNPrefab, world);
-		auto& transform = world.get<fggl::math::Transform>(southWall);
-		transform.origin({-size.x/2, 0.0F, 0.0F});
-	}
-
-	{
-		auto westWall = factory->create(WallEPrefab, world);
-		auto& transform = world.get<fggl::math::Transform>(westWall);
-		transform.origin({0.0F, 0.0F, -size.y/2});
-	}
-
-	{
-		auto eastWall = factory->create(WallEPrefab, world);
-		auto& transform = world.get<fggl::math::Transform>(eastWall);
-		transform.origin({0.0F, 0.0F, size.y/2});
-	}
-
-	{
-		auto floor = factory->create(floorPrefab, world);
-		auto& transform = world.get<fggl::math::Transform>(floor);
-		transform.origin({0.0F, -2.5F, 0.0F});
-	}
-
-	{
-		// player just starts off as the prefab dictates
-		state.player = factory->create(playerPrefab, world);
-	}
-
-	{
-		// collectables
-		std::array<fggl::math::vec3, 3> collectPos {{
-			{-5.0f, -0.5f, 12.0f},
-			{15.0f, -0.5f, 0.5f},
-			{6.0f, -0.5f, -15.0f}
-		}};
-
-		// build the collectables
-		int collectCount = 0;
-		for (auto& pos : collectPos) {
-			auto collectable = factory->create(collectablePrefab, world);
-			auto& transform = world.get<fggl::math::Transform>(collectable);
-			transform.origin(pos);
-
-			state.collectables[collectCount++] = collectable;
-		}
-	}
-
+static fggl::entity::EntityID setup_environment(fggl::entity::EntityManager& world, fggl::entity::EntityFactory* /*factory*/, const fggl::math::vec2& /*size*/, demo::RollState& state) {
 	// ensure the state is clean
 	state.closestPickup = fggl::entity::INVALID;
 	state.mode = demo::DebugMode::NORMAL;
 	state.time = 0.0F;
+	state.player = world.findByName("player");
+	state.collectables = world.findByTag("collectable");
 
 	return state.player;
 }
@@ -120,15 +68,28 @@ namespace demo {
 	constexpr fggl::math::vec3 COLOUR_BLUE{0.0F, 0.0F, 1.0F};
 	constexpr float MOVE_FORCE{3.0F};
 
-	RollBall::RollBall(fggl::App &app) : Game(app) {
+	RollBall::RollBall(fggl::App &app) : Game(app), m_phys(nullptr) {
 	}
 
 	void RollBall::activate() {
 		Game::activate();
-
 		fggl::debug::log(fggl::debug::Level::info, "RollBall::activate()");
+
+		// attach physics
+		auto* physService = m_owner.service<fggl::phys::PhysicsProvider>();
+		auto* entFactory = m_owner.service<fggl::entity::EntityFactory>();
+		m_phys = physService->create(&world(), entFactory);
+
+		auto* scriptProvider = m_owner.service<fggl::script::ScriptProvider>();
+		if ( scriptProvider != nullptr ) {
+			m_scripts = scriptProvider->create();
+			m_scripts->setGlobal("state", this);
+		}
+
+		// asset loader
 		auto* assetLoader = m_owner.service<fggl::assets::Loader>();
-		assetLoader->load("rollball.yml", fggl::entity::PROTOTYPE_ASSET);
+		assetLoader->load("rollball.yml", fggl::entity::ENTITY_PROTOTYPE, entFactory);
+		assetLoader->loadChain( fggl::assets::make_asset_id_rt("core", "rollerball/rollball.yml"), this);
 
 		// collectable callbacks
 		/*auto* collectableCallbacks = world().get<fggl::phys::CollisionCallbacks>(prefabs.collectable);
@@ -147,6 +108,28 @@ namespace demo {
 
 		// create a 20x20 grid
 		setup_environment(world(), m_owner.service<fggl::entity::EntityFactory>(), WORLD_SIZE, state);
+
+		// activate scripts
+		if ( m_scripts != nullptr ) {
+			m_scripts->onActivate();
+			m_scripts->load("rollball.lua");
+		}
+	}
+
+	void RollBall::deactivate() {
+		// deactivate scripts
+		if ( m_scripts != nullptr ) {
+			m_scripts->onActivate();
+		}
+
+		// we need to clean up physics
+		if ( m_phys != nullptr ) {
+			delete m_phys;
+			m_phys = nullptr;
+		}
+
+		// now let the rest of the scene do its bit
+		Game::deactivate();
 	}
 
 	fggl::math::vec3 calc_move_vector(const fggl::input::Input& input) {
@@ -173,10 +156,9 @@ namespace demo {
 		return force;
 	}
 
-	void RollBall::update() {
-		Game::update();
-
-		const float deltaTime = 1 / 60.0F;
+	void RollBall::update(float deltaTime) {
+		Game::update(deltaTime);
+		m_phys->step();
 
 		auto& input = this->input();
 
@@ -227,6 +209,11 @@ namespace demo {
 				spinCubes(world, deltaTime);
 				state.time += deltaTime;
 		}
+
+		// tick scripts
+		if ( m_scripts != nullptr ) {
+			m_scripts->onUpdate();
+		}
 	}
 
 	void RollBall::closestPickup(fggl::entity::EntityManager &world) {

demo/demo/topdown.cpp

@@ -20,6 +20,8 @@
 
 #include "fggl/data/storage.hpp"
 #include "fggl/gfx/camera.hpp"
+#include "fggl/gfx/phong.hpp"
+
 #include "fggl/input/camera_input.hpp"
 #include "fggl/entity/loader/loader.hpp"
 
@@ -50,6 +52,17 @@ namespace demo {
 		cameraKeys.rotate_ccw = glfwGetKeyScancode(GLFW_KEY_E);
 	}
 
+	static void setup_lighting(fggl::entity::EntityManager& ecs) {
+		auto light = ecs.create();
+		ecs.add<fggl::math::Transform>(light);
+
+		auto& lightComp = ecs.add<fggl::gfx::DirectionalLight>(light);
+		lightComp.position = fggl::math::vec3( 10.0F, 5.0F, 0.0F );
+		lightComp.diffuse = fggl::gfx::colours::CORNSILK;
+		lightComp.ambient = fggl::gfx::colours::MIDNIGHT_BLUE;
+		lightComp.specular = fggl::gfx::colours::MIDNIGHT_BLUE;
+	}
+
 	static void place_cover_boxes(fggl::entity::EntityFactory* factory, fggl::entity::EntityManager& world) {
 		std::array<fggl::math::vec3,8> boxPos = {{
 													 {-10.0F, 0.0F, -10.0F},
@@ -91,6 +104,7 @@ namespace demo {
 			}
 		}
 
+		setup_lighting(world);
 		place_cover_boxes(factory, world);
 	}
 
@@ -118,7 +132,7 @@ void TopDown::activate() {
 
 	fggl::debug::log(fggl::debug::Level::info, "TopDown::activate()");
 	auto* assetLoader = m_owner.service<fggl::assets::Loader>();
-	assetLoader->load("topdown.yml", fggl::entity::PROTOTYPE_ASSET);
+	assetLoader->load("topdown.yml", fggl::entity::ENTITY_PROTOTYPE);
 
 	auto* factory = m_owner.service<fggl::entity::EntityFactory>();
 	//fggl::ecs3::load_prototype_file(world(), *storage, "topdown.yml");
@@ -127,8 +141,8 @@ void TopDown::activate() {
 	populate_sample_level(factory, world());
 }
 
-void TopDown::update() {
-	Game::update();
+void TopDown::update(float dt) {
+	Game::update(dt);
 
 	process_camera(world(), input());
 	if ( input().mouse.pressed(fggl::input::MouseButton::LEFT) ) {
@@ -137,6 +151,10 @@ void TopDown::update() {
 }
 
 void TopDown::pick_object() {
+		if (!hasPhys()) {
+			return;
+		}
+
 	auto cameras = world().find<fggl::gfx::Camera>();
 	if ( cameras.empty() ) {
 		return;
@@ -152,9 +170,9 @@ void TopDown::pick_object() {
 	auto ray = fggl::gfx::get_camera_ray(world(), cam, position);
 	auto hit = phys().raycast(ray);
 	if ( hit != fggl::entity::INVALID) {
-		//fggl::debug::log("hit: {}", hit);
+		fggl::debug::info("hit: {}", (int)hit);
 	} else {
-		fggl::debug::log("no hit");
+		fggl::debug::info("no hit");
 	}
 }
 

demo/include/GameScene.h

@@ -57,7 +57,7 @@ enum camera_type { cam_free, cam_arcball };
 			setup();
 		}
 
-		void update() override;
+		void update(float dt) override;
 		void render(fggl::gfx::Graphics& gfx) override;
 
 	private:

vendor/header_only/public/PerlinNoise.hpp → demo/include/PerlinNoise.hpp

-//----------------------------------------------------------------------------------------
-//
-//	siv::PerlinNoise
-//	Perlin noise library for modern C++
-//
-//	Copyright (C) 2013-2021 Ryo Suzuki <reputeless@gmail.com>
-//
-//	Permission is hereby granted, free of charge, to any person obtaining a copy
-//	of this software and associated documentation files(the "Software"), to deal
-//	in the Software without restriction, including without limitation the rights
-//	to use, copy, modify, merge, publish, distribute, sublicense, and / or sell
-//	copies of the Software, and to permit persons to whom the Software is
-//	furnished to do so, subject to the following conditions :
-//
-//	The above copyright notice and this permission notice shall be included in
-//	all copies or substantial portions of the Software.
-//
-//	THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-//	IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-//	FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.IN NO EVENT SHALL THE
-//	AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-//	LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-//	OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
-//	THE SOFTWARE.
-//
-//----------------------------------------------------------------------------------------
+/*
+ * This file is part of FGGL.
+ *
+ * FGGL is free software: you can redistribute it and/or modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any
+ * later version.
+ *
+ * FGGL is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty
+ * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License along with FGGL.
+ * If not, see <https://www.gnu.org/licenses/>.
+ */
 
 # pragma once
 # include <cstdint>

demo/include/grid.hpp

+/*
+ * This file is part of FGGL.
+ *
+ * FGGL is free software: you can redistribute it and/or modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any
+ * later version.
+ *
+ * FGGL is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty
+ * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License along with FGGL.
+ * If not, see <https://www.gnu.org/licenses/>.
+ */
+
+//
+// Created by webpigeon on 27/08/22.
+//
+
+#ifndef FGGL_DEMO_INCLUDE_GRID_HPP
+#define FGGL_DEMO_INCLUDE_GRID_HPP
+
+#include <memory>
+
+#include "fggl/scenes/game.hpp"
+#include "fggl/entity/gridworld/zone.hpp"
+
+#include "fggl/animation/animator.hpp"
+#include "fggl/gui/gui.hpp"
+#include "robot/programmer.hpp"
+
+namespace demo {
+
+	constexpr int GRID_SIZE = 255;
+	using DemoGrid = fggl::entity::grid::Area2D<GRID_SIZE, GRID_SIZE>;
+
+	struct LevelRules {
+		fggl::math::vec2i startingPos;
+		uint32_t startingDirection;
+		uint32_t startingPower;
+	};
+
+	struct CellPos {
+		fggl::math::vec2i pos;
+		uint8_t direction;
+
+		fggl::math::vec2f drawOffset{0.0F, 0.0F};
+		float rotationOffset{0.0F};
+	};
+
+	struct RobotState {
+		uint32_t power = 64;
+	};
+
+	class GridScene : public fggl::scenes::GameBase {
+		public:
+			explicit GridScene(fggl::App& app);
+			void activate() override;
+			void deactivate() override;
+
+			void update(float dt) override;
+			void render(fggl::gfx::Graphics& gfx) override;
+		private:
+
+			// level
+			LevelRules m_levelRules;
+			fggl::entity::grid::TileSet m_tiles;
+			std::unique_ptr<DemoGrid> m_grid;
+
+			// control
+			fggl::entity::EntityID m_player = fggl::entity::INVALID;
+			robot::Program m_program;
+
+			// UI
+			fggl::gui::Container m_canvas;
+			fggl::animation::FrameAnimator m_animator;
+
+			void resetPuzzle();
+
+			void tickPlayer();
+			void checkVictory();
+
+			inline void forward() {
+				auto& cell = m_grid->entities().get<CellPos>(m_player);
+				fggl::math::vec2i moveDir{0,0};
+				if ( cell.direction == 0) {
+					moveDir.y = 1;
+				} else if (cell.direction == 1) {
+					moveDir.x = 1;
+				} else if (cell.direction == 2) {
+					moveDir.y = -1;
+				} else if (cell.direction == 3) {
+					moveDir.x = -1;
+				}
+
+				if ( m_grid->canMove(cell.pos, moveDir) ) {
+					cell.pos += moveDir;
+				}
+
+			}
+
+			inline void rotate(bool clockwise) {
+				auto& cell = m_grid->entities().get<CellPos>(m_player);
+				int direction = clockwise ? +1 : -1;
+				cell.direction = (cell.direction + 4 + direction) % 4;
+			}
+
+	};
+
+}
+
+#endif //FGGL_DEMO_INCLUDE_GRID_HPP

demo/include/hexboard/board.hpp

+/*
+ * This file is part of FGGL.
+ *
+ * FGGL is free software: you can redistribute it and/or modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any
+ * later version.
+ *
+ * FGGL is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty
+ * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License along with FGGL.
+ * If not, see <https://www.gnu.org/licenses/>.
+ */
+
+//
+// Created by webpigeon on 10/12/22.
+//
+
+#ifndef FGGL_DEMO_INCLUDE_HEXBOARD_BOARD_HPP
+#define FGGL_DEMO_INCLUDE_HEXBOARD_BOARD_HPP
+
+#include <cstdint>
+
+namespace demo::hexboard {
+
+	constexpr uint64_t NO_SELECTION{0};
+
+	struct SelectionModel {
+		uint64_t m_hover = NO_SELECTION;
+	};
+
+} // namespace demo::hexboard
+
+#endif //FGGL_DEMO_INCLUDE_HEXBOARD_BOARD_HPP